import Foundation
import Observation

/// `repo create <owner/name> [--private]`.
@Observable
@MainActor
final class RepoCreateViewModel {

    private(set) var working = false
    private(set) var errorMessage: String?

    private let client: GitbayClient

    init(client: GitbayClient) {
        self.client = client
    }

    nonisolated private struct Created: Decodable, Sendable {
        let path: String
    }

    /// Returns the created repo's path, or nil with `errorMessage` set.
    func create(path: String, isPrivate: Bool) async -> String? {
        working = true
        errorMessage = nil
        defer { working = false }
        do {
            var argv = ["repo", "create", path.trimmingCharacters(in: .whitespaces)]
            if isPrivate { argv.append("--private") }
            let created = try await client.run(argv, as: Created.self)
            return created?.path
        } catch let error as GitbayError {
            errorMessage = error.userFacingMessage
        } catch {
            errorMessage = GitbayError.transport(error).userFacingMessage
        }
        return nil
    }
}